EP 0893515 A1 19990127 - Preconditioned crystals of lithium niobate and lithium tantalate and methods of preparing the same
Title (en)
Preconditioned crystals of lithium niobate and lithium tantalate and methods of preparing the same
Title (de)
VORBEHANDELTE KRISTALLEN AUS LITHIUMNIOBAT UND LITHIUMTANTALAT UND VERFAHREN ZU IHRER HERSTELLUNG
Title (fr)
CRISTAUX PRETRAITES DE NIOBATE DE LITHIUM ET DE TANTALATE DE LITHIUM ET METHODES POUR LEUR PREPARATION
Publication
Application
Priority
US 90017997 A 19970725
Abstract (en)
Crystals of lithium niobate and lithium tantalate are preconditioned to intentionally increase their electrical conductivity, thus providing crystals with an increased ability to reduce surface charging. Reducing surface charging reduces the risk that the crystals may catastrophically discharge, and adversely affect the performance of devices in which the crystal is incorporated.
IPC 1-7
IPC 8 full level
C01G 33/00 (2006.01); C01G 35/00 (2006.01); C30B 33/00 (2006.01); H01L 41/18 (2006.01); H01L 41/22 (2013.01); H01L 41/253 (2013.01)
CPC (source: EP)
C30B 29/30 (2013.01); C30B 33/00 (2013.01)
Citation (search report)
- [A] EP 0191671 A1 19860820 - SHINETSU CHEMICAL CO [JP]
- [A] EP 0615005 A2 19940914 - NIHON KESSHO KOGAKU CO LTD [JP]
- [X] PATENT ABSTRACTS OF JAPAN vol. 18, no. 642 (P - 1838) 6 December 1994 (1994-12-06)
- [A] DHAR: "Optical properties of reduced lithium niobate single crystals", JOURNAL OF APPLIED PHYSICS., vol. 68, no. 11, 1 December 1990 (1990-12-01), NEW YORK US, pages 5804 - 5809, XP000207962
Designated contracting state (EPC)
DE FI SE
DOCDB simple family (publication)
EP 0893515 A1 19990127; EP 0893515 B1 20031126; DE 69819971 D1 20040108; DE 69819971 T2 20040902; JP H1192147 A 19990406
DOCDB simple family (application)
EP 98111849 A 19980626; DE 69819971 T 19980626; JP 20740198 A 19980723